Where do ideas come from?

Often ideas begin with a photo and a feeling, said Linda. Some of old photos are especially full of feeling for me, like this one of my grandmother with all her children in 1944:"It is the heart always that sees, before the head can," as Thomas Carlyle said.

And while we're on the subject of feelings, consider how they might relate to colour:

Who told you that one paints with colors? One makes use of colors, but one paints with emotions. - Jean-Baptiste-Simeon Chardin